Setup rebar3 project for eblake2

.gitignore

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+.rebar3
+_*
+.eunit
+*.o
+*.beam
+*.plt
+*.swp
+*.swo
+.erlang.cookie
+ebin
+log
+erl_crash.dump
+.rebar
+logs
+_build
+.idea
+*.iml
+rebar3.crashdump

LICENSE

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+ISC License
+
+Copyright (c) 2017, aeternity developers
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.

README.md

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+eblake2
+=====
+
+A pure Erlang Blake2 implementation
+
+Build
+-----
+
+    $ rebar3 compile

rebar.config

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+{erl_opts, [debug_info]}.
+
+{deps, []}.
+
+{plugins, [rebar3_hex]}.
+
+{profiles, [{test, [{deps, [{jsx, {git, "https://github.com/talentdeficit/jsx.git", {tag, "2.8.0"}}}]}]}
+           ]}.
+
+{xref_checks, [undefined_function_calls, undefined_functions,
+               locals_not_used, deprecated_function_calls, deprecated_functions]}.
+
+{dialyzer, [{warnings, [unknown]}]}.
+

src/eblake2.app.src

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+{application, eblake2,
+ [{description, "A pure Erlang Blake2 implementation"},
+  {vsn, "0.1.0"},
+  {registered, []},
+  {applications,
+   [kernel,
+    stdlib
+   ]},
+  {env,[]},
+  {modules, []},
+
+  {maintainers, []},
+  {licenses, ["Apache 2.0"]},
+  {links, []}
+ ]}.